Main problem solved.
It was NOT a permission issue : I have tried “net use * /delete” + computer reboot + update of permissions with no success.
However I could save my photos through SSH using Lin_Admin’s procedure. Yey! Once it was empty, I have rmdir “/weddingphotos” folder and now the physical drive is clean. No other wedding related folder.
But I still have broken links in my computer,IPad & dashboard that I would like to cleanup. I have openned a new topic for this.
Now I would like to understand why this has happened? Is it
A) because I have renamed the default folder associated with a username which is forbidden?
B) because I have tried to dashboard-rename the folder during a network-copy to this same folder which is forbidden?
C) because I am unlucky?
D) we cannot tell?
I would answer B but I would consider this as a bug that needs to be filed. What do you think?